Negative electrode active material, rechargeable lithium battery containing the same, and method for preparing the same
US-2026028234-A1 · Jan 29, 2026 · US
Preparation from elemental silicon
Preparation from elemental silicon · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C01B32/984 |
| Official title | Preparation from elemental silicon |
| Display label | Preparation from elemental silicon |
| Total patents | 52 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 3 |
| 2017 | 3 |
| 2018 | 3 |
| 2019 | 1 |
| 2020 | 3 |
| 2021 | 5 |
| 2022 | 5 |
| 2023 | 5 |
| 2024 | 9 |
| 2025 | 7 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Solution-Processed Single Silicon Carbide Nanowires as Channel Layers in Transistors and Methods Thereof
US-2025313480-A1 · Oct 9, 2025 · US
Stabilized porous silicon structure for highly stable silicon anode and methods of making
US-2025243072-A1 · Jul 31, 2025 · US
Method for recycling carbon dioxide and method for producing solid carbide
US-2025171316-A1 · May 29, 2025 · US
Silicon Carbide Powder, and Production Method Thereof
US-2025162882-A1 · May 22, 2025 · US
Stabilized porous silicon structure for highly stable silicon anode and methods of making
US-12275641-B2 · Apr 15, 2025 · US
Silicon carbide ingot and method of fabricating the same
US-12276043-B2 · Apr 15, 2025 · US
Composite negative electrode material, and preparation method therefor and use thereof
US-2025038184-A1 · Jan 30, 2025 · US
Method of recycling silicon wastewater and method of manufacturing semiconductor by using the same
US-2024400398-A1 · Dec 5, 2024 · US
Silicon carbide wafer and method of fabricating the same
US-2024401235-A1 · Dec 5, 2024 · US
Method of obtaining a silicon carbide-graphene composite with a controlled surface morphology
US-12145851-B2 · Nov 19, 2024 · US
Negative electrode active material, method for preparing same, and lithium secondary battery comprising same
US-2024379946-A1 · Nov 14, 2024 · US
Negative electrode active material, negative electrode including the negative electrode active material, secondary battery including the negative electrode, and method of preparing the negative electrode active material
US-12074324-B2 · Aug 27, 2024 · US
Method of fabricating silicon carbide ingot
US-2024271322-A1 · Aug 15, 2024 · US
Method of preparing silicon carbide and filters made therefrom
US-12060275-B2 · Aug 13, 2024 · US
Silicon to silicon carbide conversion for ceramic matrix composite fabrication
US-12054433-B2 · Aug 6, 2024 · US
Systems and methods for producing silicon carbide powder
US-2024150250-A1 · May 9, 2024 · US
Production method for composite material
US-11718569-B2 · Aug 8, 2023 · US
Two dimensional silicon carbide materials and fabrication methods thereof
US-2023212402-A1 · Jul 6, 2023 · US
Method for producing silicon carbide from waste circuit board cracking residue
US-11667532-B2 · Jun 6, 2023 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01B32/984?
- CPC C01B32/984 is the Cooperative Patent Classification code for “Preparation from elemental silicon.”
- How many patents are filed under CPC C01B32/984 (Preparation from elemental silicon)?
- Our database includes 52 publications tagged with this CPC code.
- Is patent activity under CPC C01B32/984 growing?
- Publication counts under this code: 9 in 2024 vs 7 in 2025 (latest complete years).